I can see the safety aspect. My wife has no spatial awareness. Almost every night or morning she is (while fully awake) turning over or stretching and smashing everything off of her night table.
Or if we are cuddled watching a show and she goes to scratch her nose she doesn't take into account where her arm my be in the embrace, or has even smashed me in the bottom jaw and clacked my teeth together trying to find her nose.
I would not want her anywhere near moving or fixed machinery, for her own safety and the company's "n days since accident" sign